Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

Tutors Answer Your Questions about Graphs (FREE)

Question 1158302: olve the system by graphing the functions, and finding their points of intersection
y+x=-4
y=2x² +3x-4
Click here to see answer by Alan3354(69443)

Question 1158302: olve the system by graphing the functions, and finding their points of intersection
y+x=-4
y=2x² +3x-4
Click here to see answer by josgarithmetic(39617)

Question 1158297: SOlve this system by graphing
y=2x²-8x+8
y=-5(x-2)²+4
Click here to see answer by solver91311(24713)

Question 1158297: SOlve this system by graphing
y=2x²-8x+8
y=-5(x-2)²+4
Click here to see answer by Boreal(15235)

Question 1158398: what is the axis of symmetry for y=-3x^2
Click here to see answer by Shin123(626)

Question 1158393: Find f(-2),f(0) and f(4) for the following function.
f(x)=-3x
f(-2)=
f(0)=
f(4)=
Click here to see answer by Shin123(626)

Question 1158468: y = x sqrt(x cbrt(x root[4](x root[5](x....to∞)))) find dy/dx
Click here to see answer by ikleyn(52781)

Question 1158467: y = xsqrt(xcbrt(xroot[4](xroot[5](x....to∞)))) find dy/dx
Click here to see answer by ikleyn(52781)

Question 1158465: if y =sqrt(cos x sqrt cos x sqrt (cos(x)* ....to ∞))),
find dy/dx

Click here to see answer by ikleyn(52781)

Question 1158436: Draw a piecewise function for the letter "M". (the outside legs cannot be vertical for this to be a function, it should be an inverted W)
The figure must have:
no formal symmetry (WRT axes or origin)
it must be entirely within a quadrant II of the coordinate system (x<0,y>0)
it must have no function values f(x)=0 of for f(0)
all endpoints of intervals must be labeled with their coordinates
there must be at least 4 units distance between endpoints
write the piecewise function definition for your figure using linear function only
Click here to see answer by Edwin McCravy(20055)

Question 1158497: Graph the Inequality.
y ≤ -1/2x + 1
Click here to see answer by Shin123(626)

Question 1158493: Graph the inequality in the coordinate plane.
y ≥-3
Click here to see answer by MathLover1(20849)

Question 1158548: Given the line represented by y = 4/5 x - 7 , write a equation for a parallel line containing point (-20,7)
Click here to see answer by Shin123(626)

Question 1158582: *True OR false*
IF f’(x) =g’(x) then
f(x) - g(x) = zero

Click here to see answer by greenestamps(13200)

Question 1158582: *True OR false*
IF f’(x) =g’(x) then
f(x) - g(x) = zero

Click here to see answer by MathLover1(20849)

Question 1158643: Find the slope of the line that passes through each pair of points.
A( - 2, - 1), B( - 1, 1)
Click here to see answer by mananth(16946)

Question 1158869: What is a y intercept and what purpose does it serve? (I am a not so mathematical Dad trying to help a challenged child)

Click here to see answer by math_helper(2461)

Question 1158869: What is a y intercept and what purpose does it serve? (I am a not so mathematical Dad trying to help a challenged child)

Click here to see answer by Cromlix(4381)

Question 1158869: What is a y intercept and what purpose does it serve? (I am a not so mathematical Dad trying to help a challenged child)

Click here to see answer by Theo(13342)

Question 1159058: Y=-4/9X-4
Click here to see answer by greenestamps(13200)

Question 1159073: Find any possible function h and l such (h o l)(x) = -root x+2/3
It’s composition function
Click here to see answer by solver91311(24713)

Question 1159073: Find any possible function h and l such (h o l)(x) = -root x+2/3
It’s composition function
Click here to see answer by MathLover1(20849)

Question 1159071: F(x) = -2/5^2 +2x +28/5
G(x) = -4/5x + 28/5
USE THE GRAPHS of f and g (NOT the algebraic expression for f(x) and g(x)) to solve the inequality (3)
F(x)g(x) < 0
Click here to see answer by Alan3354(69443)

Question 1159072: f(x) = -1/2x + 5/2
g(x) = -1/2x^2 + 3x - 5/2
USE THE GRAPHS to solve the inequality (3)
(f . g)(x) >\= 0
Click here to see answer by Alan3354(69443)

Question 1159477: The point (-4,k)and (2,1.75)lie in the graph of y=(x+b).find the possible value of the constant n and the corresponding values of the constant k
Click here to see answer by MathLover1(20849)

Question 1159490: The point(-4,K)and(2,1.75)lies on the graph of y=|X+B|.find the possible values of the constant B and the corresponding of the constant K.B and K should have two answers.
Click here to see answer by greenestamps(13200)

Question 1159541: Sketch the graph of Y=2X-5 and the Y=|X-2|.indicate,on your diagram the coordinates of the points of intersection of each graphy with the coordinates axes
Click here to see answer by MathLover1(20849)

Question 1159638: The line y=2x+c is a tangent to the curve y=2x^2-6x+20.find the value of c
Click here to see answer by math_helper(2461)

Question 1159682: Write an equation of the line passing through the point (-2,1) and perpendicular to the lines y=2x-5
Click here to see answer by josgarithmetic(39617)

Question 1159749: Graph y = 3x

Click here to see answer by MathLover1(20849)

Question 1159793: Find an equation of the tangent line to the curve y=e^x/(1+2e^x ) at the point whose x-coordinate is 0.
Differentiate f(x)=x^x+e^(x-x^3 )-ln⁡〖(ln⁡〖(3x)〗)〗

Click here to see answer by MathLover1(20849)

Question 1159812: Let f(x)=(2x^2)/(x^2-1) and g(x)=e^(x^2-4).
Solve for x the equation g(x)=16.
Find f(g(x)). Simplify your answer.
Describe the domains of f(x) and g(x).

Click here to see answer by MathLover1(20849)

Question 1159926: From a large number of actuarial exam scores, a random sample of 250 scores is selected, and it is found that 170 of these 250 are passing scores. Based on this sample, find a 95% confidence interval for the proportion of all scores that are passing.
Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.
What is the lower limit of the 95% confidence interval?
What is the upper limit of the 95% confidence interval?

Click here to see answer by Boreal(15235)

Question 1159951: Solve: cos(x) cos (6x) =-1
Click here to see answer by MathLover1(20849)

Question 1159951: Solve: cos(x) cos (6x) =-1
Click here to see answer by ikleyn(52781)

Question 1159972: If you have an inequality that is a is less than or equal to -4 would you have
a closed dot with an arrow pointing to the left
Click here to see answer by ikleyn(52781)

Question 1159950: Solve ;
sin(x) sin(2x) < sin(3x) sin(4x)
Click here to see answer by MowMow(42)

Question 1159950: Solve ;
sin(x) sin(2x) < sin(3x) sin(4x)
Click here to see answer by Alan3354(69443)

Question 1159950: Solve ;
sin(x) sin(2x) < sin(3x) sin(4x)
Click here to see answer by ikleyn(52781)

Question 1159982: Solve the simultaneous equation by
- graphical means
- algebraic means
X + 5 = y
2x + 3y - 5 =0
Click here to see answer by josgarithmetic(39617)

Question 1160072: Find: int(1/(1+x^5)) dx
Click here to see answer by ikleyn(52781)

Question 1159957: Evaluate : int(x^(x-2) * (x+1+(x+ln(x²/e))²)) dx : int means integral
Click here to see answer by solver91311(24713)

Question 1160291: Given that c=2pir
A)find c when pi =3.142 and r=50
B)find r when c=286 and pi=3 1/2
Click here to see answer by Boreal(15235)

Question 1160291: Given that c=2pir
A)find c when pi =3.142 and r=50
B)find r when c=286 and pi=3 1/2
Click here to see answer by Alan3354(69443)

Question 1160291: Given that c=2pir
A)find c when pi =3.142 and r=50
B)find r when c=286 and pi=3 1/2
Click here to see answer by ikleyn(52781)

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